Home / 309,181.32-426,666.29-173,212.83

Finding the Fourth Proportional to 309,181.32, 426,666.29 and 173,212.83

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Solution

The fourth proportional to 309,181.32, 426,666.29 and 173,212.83 is: 239,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,181.32 : 426,666.29 = 173,212.83 : x
  2. Step 2: Convert to fraction form
    309,181.32/426,666.29 = 173,212.83/x
  3. Step 3: Cross multiply
    309,181.32x = 426,666.29 × 173,212.83
  4. Step 4: Simplify right side
    309,181.32x = 73,904,074,690.44
  5. Step 5: Solve for x
    x = 73,904,074,690.44/309,181.32
  6. Step 6: Final answer
    x = 239,031.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.